diff --git a/packages/overlays/Android.mk b/packages/overlays/Android.mk
index 2675e900fd6d5..3f16c128f6641 100644
--- a/packages/overlays/Android.mk
+++ b/packages/overlays/Android.mk
@@ -49,7 +49,10 @@ LOCAL_REQUIRED_MODULES := \
 	IconShapeTeardropOverlay \
 	NavigationBarMode3ButtonOverlay \
 	NavigationBarMode2ButtonOverlay \
-	NavigationBarModeGesturalOverlay
+	NavigationBarModeGesturalOverlay \
+	NavigationBarModeGesturalOverlayNarrowBack \
+	NavigationBarModeGesturalOverlayWideBack \
+	NavigationBarModeGesturalOverlayExtraWideBack
 
 include $(BUILD_PHONY_PACKAGE)
 include $(CLEAR_VARS)
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/Android.mk b/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/Android.mk
new file mode 100644
index 0000000000000..9a38efa2f95d6
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/Android.mk
@@ -0,0 +1,30 @@
+#
+#  Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_RRO_THEME := NavigationBarModeGesturalExtraWideBack
+
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
+
+LOCAL_PACKAGE_NAME := NavigationBarModeGesturalOverlayExtraWideBack
+LOCAL_SDK_VERSION := current
+
+include $(BUILD_RRO_PACKAGE)
\ No newline at end of file
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/AndroidManifest.xml b/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/AndroidManifest.xml
new file mode 100644
index 0000000000000..ba7bebac16a48
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/AndroidManifest.xml
@@ -0,0 +1,27 @@
+<!--
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+        package="com.android.internal.systemui.navbar.gestural_extra_wide_back"
+        android:versionCode="1"
+        android:versionName="1.0">
+    <overlay android:targetPackage="android"
+        android:category="com.android.internal.navigation_bar_mode"
+        android:priority="1"/>
+
+    <application android:label="@string/navigation_bar_mode_title" android:hasCode="false"/>
+</manifest>
\ No newline at end of file
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/res/values/config.xml b/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/res/values/config.xml
new file mode 100644
index 0000000000000..c8f994c982e5b
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/res/values/config.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<resources>
+    <!-- Controls the navigation bar interaction mode:
+         0: 3 button mode (back, home, overview buttons)
+         1: 2 button mode (back, home buttons + swipe up for overview)
+         2: gestures only for back, home and overview -->
+    <integer name="config_navBarInteractionMode">2</integer>
+
+    <!-- Controls whether the nav bar can move from the bottom to the side in landscape.
+         Only applies if the device display is not square. -->
+    <bool name="config_navBarCanMove">false</bool>
+
+    <!-- Controls whether the navigation bar lets through taps. -->
+    <bool name="config_navBarTapThrough">true</bool>
+
+    <!-- Controls the size of the back gesture inset. -->
+    <dimen name="config_backGestureInset">40dp</dimen>
+
+    <!-- Controls whether the navbar needs a scrim with
+     {@link Window#setEnsuringNavigationBarContrastWhenTransparent}. -->
+    <bool name="config_navBarNeedsScrim">false</bool>
+
+    <!-- Controls whether seamless rotation should be allowed even though the navbar can move
+         (which normally prevents seamless rotation). -->
+    <bool name="config_allowSeamlessRotationDespiteNavBarMoving">true</bool>
+
+    <!-- Controls whether the side edge gestures can always trigger the transient nav bar to
+         show. -->
+    <bool name="config_navBarAlwaysShowOnSideEdgeGesture">true</bool>
+
+</resources>
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/res/values/dimens.xml b/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/res/values/dimens.xml
new file mode 100644
index 0000000000000..987d20375e5e1
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/res/values/dimens.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<resources>
+    <!-- Height of the bottom navigation / system bar. -->
+    <dimen name="navigation_bar_height">16dp</dimen>
+    <!-- Height of the bottom navigation bar in portrait; often the same as @dimen/navigation_bar_height -->
+    <dimen name="navigation_bar_height_landscape">16dp</dimen>
+    <!-- Width of the navigation bar when it is placed vertically on the screen -->
+    <dimen name="navigation_bar_width">16dp</dimen>
+    <!-- Height of the bottom navigation / system bar. -->
+    <dimen name="navigation_bar_frame_height">48dp</dimen>
+</resources>
\ No newline at end of file
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/res/values/strings.xml b/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/res/values/strings.xml
new file mode 100644
index 0000000000000..bbab5e0477f7a
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayExtraWideBack/res/values/strings.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <!-- Name of overlay [CHAR LIMIT=64] -->
+    <string name="navigation_bar_mode_title" translatable="false">Gestural Navigation Bar</string>
+</resources>
\ No newline at end of file
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/Android.mk b/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/Android.mk
new file mode 100644
index 0000000000000..1d004c83faefe
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/Android.mk
@@ -0,0 +1,30 @@
+#
+#  Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_RRO_THEME := NavigationBarModeGesturalNarrowBack
+
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
+
+LOCAL_PACKAGE_NAME := NavigationBarModeGesturalOverlayNarrowBack
+LOCAL_SDK_VERSION := current
+
+include $(BUILD_RRO_PACKAGE)
\ No newline at end of file
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/AndroidManifest.xml b/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/AndroidManifest.xml
new file mode 100644
index 0000000000000..8de91c0cf8abe
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/AndroidManifest.xml
@@ -0,0 +1,27 @@
+<!--
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+        package="com.android.internal.systemui.navbar.gestural_narrow_back"
+        android:versionCode="1"
+        android:versionName="1.0">
+    <overlay android:targetPackage="android"
+        android:category="com.android.internal.navigation_bar_mode"
+        android:priority="1"/>
+
+    <application android:label="@string/navigation_bar_mode_title" android:hasCode="false"/>
+</manifest>
\ No newline at end of file
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/res/values/config.xml b/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/res/values/config.xml
new file mode 100644
index 0000000000000..693110adb3123
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/res/values/config.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<resources>
+    <!-- Controls the navigation bar interaction mode:
+         0: 3 button mode (back, home, overview buttons)
+         1: 2 button mode (back, home buttons + swipe up for overview)
+         2: gestures only for back, home and overview -->
+    <integer name="config_navBarInteractionMode">2</integer>
+
+    <!-- Controls whether the nav bar can move from the bottom to the side in landscape.
+         Only applies if the device display is not square. -->
+    <bool name="config_navBarCanMove">false</bool>
+
+    <!-- Controls whether the navigation bar lets through taps. -->
+    <bool name="config_navBarTapThrough">true</bool>
+
+    <!-- Controls the size of the back gesture inset. -->
+    <dimen name="config_backGestureInset">18dp</dimen>
+
+    <!-- Controls whether the navbar needs a scrim with
+     {@link Window#setEnsuringNavigationBarContrastWhenTransparent}. -->
+    <bool name="config_navBarNeedsScrim">false</bool>
+
+    <!-- Controls whether seamless rotation should be allowed even though the navbar can move
+         (which normally prevents seamless rotation). -->
+    <bool name="config_allowSeamlessRotationDespiteNavBarMoving">true</bool>
+
+    <!-- Controls whether the side edge gestures can always trigger the transient nav bar to
+         show. -->
+    <bool name="config_navBarAlwaysShowOnSideEdgeGesture">true</bool>
+
+</resources>
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/res/values/dimens.xml b/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/res/values/dimens.xml
new file mode 100644
index 0000000000000..987d20375e5e1
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/res/values/dimens.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<resources>
+    <!-- Height of the bottom navigation / system bar. -->
+    <dimen name="navigation_bar_height">16dp</dimen>
+    <!-- Height of the bottom navigation bar in portrait; often the same as @dimen/navigation_bar_height -->
+    <dimen name="navigation_bar_height_landscape">16dp</dimen>
+    <!-- Width of the navigation bar when it is placed vertically on the screen -->
+    <dimen name="navigation_bar_width">16dp</dimen>
+    <!-- Height of the bottom navigation / system bar. -->
+    <dimen name="navigation_bar_frame_height">48dp</dimen>
+</resources>
\ No newline at end of file
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/res/values/strings.xml b/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/res/values/strings.xml
new file mode 100644
index 0000000000000..bbab5e0477f7a
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayNarrowBack/res/values/strings.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <!-- Name of overlay [CHAR LIMIT=64] -->
+    <string name="navigation_bar_mode_title" translatable="false">Gestural Navigation Bar</string>
+</resources>
\ No newline at end of file
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayWideBack/Android.mk b/packages/overlays/NavigationBarModeGesturalOverlayWideBack/Android.mk
new file mode 100644
index 0000000000000..0ab463f8e49fc
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayWideBack/Android.mk
@@ -0,0 +1,30 @@
+#
+#  Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_RRO_THEME := NavigationBarModeGesturalWideBack
+
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
+
+LOCAL_PACKAGE_NAME := NavigationBarModeGesturalOverlayWideBack
+LOCAL_SDK_VERSION := current
+
+include $(BUILD_RRO_PACKAGE)
\ No newline at end of file
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayWideBack/AndroidManifest.xml b/packages/overlays/NavigationBarModeGesturalOverlayWideBack/AndroidManifest.xml
new file mode 100644
index 0000000000000..daf461382b289
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayWideBack/AndroidManifest.xml
@@ -0,0 +1,27 @@
+<!--
+/**
+ * Copyright (c) 2018, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+        package="com.android.internal.systemui.navbar.gestural_wide_back"
+        android:versionCode="1"
+        android:versionName="1.0">
+    <overlay android:targetPackage="android"
+        android:category="com.android.internal.navigation_bar_mode"
+        android:priority="1"/>
+
+    <application android:label="@string/navigation_bar_mode_title" android:hasCode="false"/>
+</manifest>
\ No newline at end of file
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayWideBack/res/values/config.xml b/packages/overlays/NavigationBarModeGesturalOverlayWideBack/res/values/config.xml
new file mode 100644
index 0000000000000..5cd6ce3d7d500
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayWideBack/res/values/config.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<resources>
+    <!-- Controls the navigation bar interaction mode:
+         0: 3 button mode (back, home, overview buttons)
+         1: 2 button mode (back, home buttons + swipe up for overview)
+         2: gestures only for back, home and overview -->
+    <integer name="config_navBarInteractionMode">2</integer>
+
+    <!-- Controls whether the nav bar can move from the bottom to the side in landscape.
+         Only applies if the device display is not square. -->
+    <bool name="config_navBarCanMove">false</bool>
+
+    <!-- Controls whether the navigation bar lets through taps. -->
+    <bool name="config_navBarTapThrough">true</bool>
+
+    <!-- Controls the size of the back gesture inset. -->
+    <dimen name="config_backGestureInset">32dp</dimen>
+
+    <!-- Controls whether the navbar needs a scrim with
+     {@link Window#setEnsuringNavigationBarContrastWhenTransparent}. -->
+    <bool name="config_navBarNeedsScrim">false</bool>
+
+    <!-- Controls whether seamless rotation should be allowed even though the navbar can move
+         (which normally prevents seamless rotation). -->
+    <bool name="config_allowSeamlessRotationDespiteNavBarMoving">true</bool>
+
+    <!-- Controls whether the side edge gestures can always trigger the transient nav bar to
+         show. -->
+    <bool name="config_navBarAlwaysShowOnSideEdgeGesture">true</bool>
+
+</resources>
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayWideBack/res/values/dimens.xml b/packages/overlays/NavigationBarModeGesturalOverlayWideBack/res/values/dimens.xml
new file mode 100644
index 0000000000000..987d20375e5e1
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayWideBack/res/values/dimens.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<resources>
+    <!-- Height of the bottom navigation / system bar. -->
+    <dimen name="navigation_bar_height">16dp</dimen>
+    <!-- Height of the bottom navigation bar in portrait; often the same as @dimen/navigation_bar_height -->
+    <dimen name="navigation_bar_height_landscape">16dp</dimen>
+    <!-- Width of the navigation bar when it is placed vertically on the screen -->
+    <dimen name="navigation_bar_width">16dp</dimen>
+    <!-- Height of the bottom navigation / system bar. -->
+    <dimen name="navigation_bar_frame_height">48dp</dimen>
+</resources>
\ No newline at end of file
diff --git a/packages/overlays/NavigationBarModeGesturalOverlayWideBack/res/values/strings.xml b/packages/overlays/NavigationBarModeGesturalOverlayWideBack/res/values/strings.xml
new file mode 100644
index 0000000000000..bbab5e0477f7a
--- /dev/null
+++ b/packages/overlays/NavigationBarModeGesturalOverlayWideBack/res/values/strings.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <!-- Name of overlay [CHAR LIMIT=64] -->
+    <string name="navigation_bar_mode_title" translatable="false">Gestural Navigation Bar</string>
+</resources>
\ No newline at end of file